Electrophotographic imaging member having laminated layers
In a process for producing an electrophotographic imaging member, a charge transport layer is coated onto a support and the charge transport layer is laminated onto at least one lower layer of the electrophotographic imaging member. The electrophotographic imaging member includes a preformed transport layer laminated onto a lower layer of the electrophotographic imaging member.
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Claims
1. A process of producing an electrophotographic imaging member comprising:
- coating a charge transport layer onto a removable support; and
- laminating said charge transport layer and support onto a charge generating layer preformed on a substrate of an electrophotographic imaging member having an adhesive layer between said charge generating layer and said substrate.
2. The process of claim 1, wherein said charge transport layer is coated onto the support by the process of solvent coating.
3. The process of claim 1, further comprising applying a charge blocking layer over a substrate, applying a charge generating layer over said charge blocking layer and laminating said charge transport layer onto said charge generating layer.
4. The process of claim 3, further comprising applying an adhesive layer onto said charge blocking layer and applying said charge generating layer onto said adhesive layer.
5. The process of claim 4, wherein said charge generating layer is applied by vapor deposition.
6. The process of claim 3, wherein said charge generating layer is applied by vapor deposition.
7. The process of claim 1, wherein said charge transport layer is laminated onto said layer of an electrophotographic imaging member by application of heat, pressure or heat and pressure.
8. The process of claim 1. further comprising removing said support from said charge transport layer.
9. The process of claim 1, wherein said support is selected from the group consisting of film forming polyesters, polytetrafluoroethylenes and titanium-coated polyesters.
10. The process of claim 1, further comprising applying an adhesive onto a side of said charge transport layer opposite from said support and thereafter applying the transport layer and support with applied adhesive onto said layer of an electrophotographic imaging member.
11. An electrophotographic imaging member comprising a preformed charge transport layer coated onto a removable support on one side and laminated on the other side to a charge generating layer preformed on an adhesive layer on a substrate of an electrophotographic imaging member.
12. The electrophotographic imaging member of claim 11, additionally comprising an adhesive layer between said charge transport layer and said charge generating layer.
13. The electrophotographic imaging member of claim 11, additionally comprising a charge blocking layer and an adhesive layer between said charge generating layer and said charge blocking layer.
14. The electrophotographic imaging member of claim 13, wherein said adhesive layer comprises a polyester resin.
15. The electrophotographic imaging member of claim 11, wherein said support is selected from the group consisting of film forming polyesters, polytetrafluoroethylenes and titanium-coated polyesters.
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Type: Grant
Filed: Aug 31, 1992
Date of Patent: Nov 3, 1998
Assignee: Xerox Corporation (Stamford, CT)
Inventors: Kathleen M. Carmichael (Williamson, NY), Kent J. Evans (Lima, NY), Sharon E. Normandin (Macedon, NY), Donald P. Sullivan (Rochester, NY)
Primary Examiner: S. Rosasco
Law Firm: Oliff & Berridge
Application Number: 7/937,321
International Classification: G03G 1502;
